Woven fabric.



I PATENTE) MAY 16, 1.905.

H. HARDWIGK.

WOVEN FABRIC.

APPLICATION FILED SEPT. 30, 1904.

No. 79o,2o5.

i UNITED STATES Patented May 1e, 1905.'

lHARRY I-IARDWIQK, AvOF PHILADELPHIA, PENNSYLVANIA.

WOVEN FABRIC.

SPECIFICATION forming part of Letters Iatent No. l790,205, dated May 16,1905.;

Application filed September 30, 1904:. Serial No. 226,699. i

tern, in such manner as to prevent the weftthreads of the one ply whichare engaged by j the tying warp-thread from being drawn into suchrelation to the weft-threads of the other ply` as to be visible, or asit is technically termed to grin between the same. This object I attainin the manner hereinafter set forth, reference being had to theaccompanying drawing, which represents an exaggerated section of a pieceof fabric made in accordance with my invention, the Isection being takenin the direction of the warp-threads.

The fabric shown is as to its general struc,- ture similar to anordinary two-ply ingrain carpet fabric, being composed of successivesets of weft-threadsl 2 3 i interwoven with warp-threads l, 2, 3, andli, so as to form two plies.-

In the present instance the weft-threads 1 and 3 are thefligure-threads7 and the weftthreads 2 and 4 are the ground-threads, andeach of the plies of the fabric shown consists one-half of ground andone-half of {igure, the warp-threads being so disposed in respect to theweft-threads that each. of the latter will be normally bound by awarpthread of corresponding color in both plies of the fabric.

In an ordinary two-ply ingrain carpet fabric the figure-threads form oneply and the ground-threads the other ply, and these plies aredisconnected from one another except where the plies change from face toface.

In order to tie together the two plies of the fabric, especially in theground and figure portion, I vcarry a warp-thread of one ply to andaround a weftfthread vof the other ply at any desired intervals and atthe same time displace the warp-thread, which would normally bind saidtied weft-thread, so that'said displaced warp-thread will at thetying-point pass between the two plies from vand to a weft-thread of thesame ply and will thereby prevent the weft-thread which isiengaged bythe tying warp-thread from assuming such a position in respect to theweft-threads of the -other ply as to grin or be `visible between thelatter.

In the drawing I have shown the -Warpthread l, which normally binds theweftthread l, engaging with the weft-thread 2 of the other ply andpassing thence back to a weft-thread 1 of the rst ply, said warp-threadlL thus serving as a tying-thread, the warpthread 2, which normallybinds the lweftthread 2, engaging in like manner with the weft-thread lwhen performing tying duty, although it is immaterial which of the warpand weft threads are thus engaged for tying purposes so long as thenormal binding warpthread for the weft-thread which is tied is at suchtying-point shifted to a position between the face and back plies of thefabric, where it extends from and to a weft-thread of the same ply forthe purpose described.

By always carrying the tying warp-thread from one and the same ply ofthe fabric and floating between the' plies the warpthread which wouldnormally serve as a binder the 'solid color effects in the ground andfigure of the pattern of said ply are not disturbed by the presencetherein of warp-threads of a color contrasting with those of theweft-threads.

Having thus described my invention, I claim and desire to secure byLetters Patent- 1. A woven fabric having a plurality of plies, eachcomposed of interwoven warp and weft threads, said plies being tiedtogether at intervals bya warp-thread of one ply passing around aweft-thread of the other ply, the normal binding warp thread for saidtied weft-thread, passing at the tying-point, between the plies from andto a weft-thread of the same ply, substantially as specified.

2. A woven fabric having a plurality of plies each composed ofinterwoven warp and weft threads so disposed that each weft-thread will,in each ply of fabric, be normally bound by a Warp-thread ofcorresponding color, the plies being tied together at intervals by a IOOwarp-thread of one ply passing around a weftthreaol of the other ply,and the normal binding warp-thread for said tied weft-thread, passing,at the tying-point, between the plies from and to a weft-thread of thesame ply, substantially as specified.

3. A woven fabric having a plurality of plies, each composed ofinterwoven warp and weft threads, said plies being tied together atintervals by a warp-thread of one ply passing around a weft-thread ofthe other ply, the normal binding warp -thread for said tiedweft-thread, passing, at the tying-point, between the plies from and toa weft-thread of the same ply, and the tying warp-thread always beingdrawn from the same ply of the fabric, substantially as specified.

4. A woven fabric having a plurality of plies each composed ofinterwoven warp and weft threads so disposed that each weft-thread will,in each ply of fabric, be normally bound by a warp-thread ofcorresponding color, the plies being tied together at intervals by awarp-thread of one ply passing aroundaweftthread of the other ply, thenormal binding warp-thread for said tied weft-thread, passing, at thetying-point, between the plies from and to a weft-thread of the sameply, and the tying Warp-thread always being drawn from the same ply ofthe fabric, substantially as specified.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HARRY HARDWICK.

Witnesses:

WALTER CHISM, Jos. H. KLEIN.

